/*
 * Copyright 2010 - 2011, The PLDesktop Development Team
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#ifndef PLKERNEL_DEBUG_CONSOLE_H
#define PLKERNEL_DEBUG_CONSOLE_H

#include <output.h>

#include <tools/PLSingleton.h>
using namespace PLSDK;

/**
 * Debug output console for kernel debug messages.
 */
class PLKernelDebugConsole : public PLOutput, public PLSingleton<PLKernelDebugConsole> {
	friend class PLSingleton<PLKernelDebugConsole>;
public:
	/**
	 * Print a char at the current position and go to the
	 * next position.
	 *
	 * @param c The character to print with the attributes.
	 * @param attr Attributes for the character.
	 */
	void putchar(int c, PLColorVGA16 attr);
	/**
	 * Is the debug console active.
	 *
	 * @return True if the debug console was active.
	 */
	inline bool debugActive();
	/**
	 * Deactivate or activate the debug console.
	 *
	 * @param debug Set the debug console on or off.
	 */
	inline void setDebugActive(bool debug);
protected:
	/**
	 * Constructor.
	 */
	PLKernelDebugConsole();
	/**
	 * The clear screen was called.
	 */
	void cleared();
private:
	void newlineScroll();
	bool m_debugActive;
};

bool PLKernelDebugConsole::debugActive() {
	return m_debugActive;
}

void PLKernelDebugConsole::setDebugActive(bool debug) {
	m_debugActive = debug;
}

#endif
